| 摘要 |
PURPOSE: Provided are an apparatus and a method for treating wastewater, which can eliminate volatile compounds such as ammonia from wastewater in short time. CONSTITUTION: The apparatus comprises a tank(10) with a wastewater inlet(11) and a treated water outlet(13), a wastewater circulation pipe line(30) connected to the tank(10) for circulating wastewater in the tank(10) by a pump, a treatment gas supply unit(31) for supplying treatment gas to remove volatile compounds in wastewater, a treatment gas suction unit(40) connected to the treatment gas supply unit(31) and installed on the wastewater circulation pipe line(30) for sucking the treatment gas into the wastewater circulation pipe(30) to be mixed with wastewater while it passes through the circulation pipe(30), a treatment gas exhausting unit(15) for exhausting the treatment gas combined with the volatile compounds from the tank(10), a fluidity control unit for controlling fluidity of wastewater in the tank, a temperature control unit(17) for controlling a temperature of wastewater in the tank(10) to 40 to 80 deg.C, and a pH control unit(16) for controlling pH of wastewater to 10 to 13, wherein the wastewater circulation pipe line(30) includes a first circulation pipe through which wastewater is introduced and a second circulation pipe through which wastewater flows out, and wherein the treatment gas suction unit includes a casing connected to the treatment gas supply unit and having an inner space keeping constant pressure, a nozzle installed in the casing and connected to the first circulation pipe for increasing flow rate of wastewater, and a connection pipe installed in the casing to surround an end of the nozzle having a distance between the inner surface thereof with the outer surface of the nozzle.
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